Bluetooth remote -Power Button

Provide a tool to end-user to toggle the remote device's power.
The user can use this to connect to remote android device.
Then turn on the screen on/off.

If user want to control another device by using one android phone.

for instance:
device 1: Google Galaxy Nexus
device 2: Android Tablet

When I leave the office, I will lock all device's screen by pressing the power button. If I use this , I can control another Android tablet by using just one android phone.

The app has been verified by using sub devices.
1. Google nexus one.
2. Google nexus s
3. Google galaxy nexus
4. Asus Transformer TF101